He would not let me address him in the language intercession. “I am like you,” he said, “but of a different sphere and a different power. I am not immortal; nothing is immortal. Neither the Earth, the Sun, nor the God who made them. Everything is passing away, or rather, dissolving, to be re-fashioned into other forms.”
Joe: Wait—the what, now?
Barry: If you travel back in time to change something, then you end up being the causal factor of that event.
Cisco: Like . . . Terminator.
Joe: Ah!
Wells: Or is time plastic? Is it mutable, whereby any changes in the continuum could create an alternate timeline?
Cisco: Back to the Future.
Joe: Ah, saw that one, too.